【摘要】 用扫描电子显微镜（SEM）、光电子能谱分析（ESCA）研究了不同配比的天然镁砂与铬精矿、普通铬矿混合物的淬冷试样,讨论了方镁石、尖晶石与液相分布规律及其对制品性能的影响。发现当铬矿含量>50％时,随着CaO/SiO₂比减小,Al₂O₃和Fe₂O₃在硅酸盐液相中的溶解量增大,使高温性能下降。更多还原

【Abstract】 A series of mixtures of sintered magnesite and ordinary or concentrated chrome oer with different proportions was studied and analyzed by ESCA and SEM.The distribution and composition of periclase, spinel and liquid phase in the mixture were also studied and the influence on the properties of the products was discussed. It is found that when chrome ore in the composition is more than 50％, with the increase of the dissolved amount of Al₂O₃ and Fe₂O₃ in the silicate liquid phase and the reduction of the CaO/SiO₂ ratio, the high temperature properties of the products will be weakened.更多还原